Free alternatives to expensive software

I’ve mentioned this site [1] before that lists Open Source alternatives to popular commercial programs, but here’s another site [2], suggested by subscriber Yoel Polsky, that does the same thing a different way. A most useful resource.
[1] http://whdb.com/2008/the-top-50-proprietary-programs-that-drive-you-crazy-and-their-open-source-alternatives/
[2] http://www.osalt.com/
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All Windows Secrets articles posted on 2008-03-20: